80672049 has 6 divisors (see below), whose sum is σ = 116526306. Its totient is φ = 53781360.

The previous prime is 80672047. The next prime is 80672077. The reversal of 80672049 is 94027608.

It can be written as a sum of positive squares in only one way, i.e., 78641424 + 2030625 = 8868^2 + 1425^2 .

It is not a de Polignac number, because 80672049 - 2¹ = 80672047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80672047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4481772 + ... + 4481789.

It is an arithmetic number, because the mean of its divisors is an integer number (19421051).

Almost surely, 2^80672049 is an apocalyptic number.

It is an amenable number.

80672049 is a deficient number, since it is larger than the sum of its proper divisors (35854257).

80672049 is a wasteful number, since it uses less digits than its factorization.

80672049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8963567 (or 8963564 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 80672049 is about 8981.7620208955. The cubic root of 80672049 is about 432.0901464397.

The spelling of 80672049 in words is "eighty million, six hundred seventy-two thousand, forty-nine".